 function setProposalThresholdPercentage(uint32 _proposalThresholdPercentage) public {
        if (msg.sender != address(this)) revert NotGovernor();
        if (proposalThresholdPercentage > 1000) revert InvalidThreshold(); // Max 10%
        proposalThresholdPercentage = _proposalThresholdPercentage;
        emit ProposalThresholdSet(_proposalThresholdPercentage);
    }
